电磁感应透明
超材料
介电常数
偶极子
激发
分裂环谐振器
物理
光学
电介质
磁场
材料科学
环面
电场
凝聚态物理
光电子学
等离子体
量子力学
作者
Haiming Li,Shaobin Liu,Siyuan Liu,Shen‐Yun Wang,Guowen Ding,Hua Yang,Zhi-yang Yu,Haifeng Zhang
摘要
In this paper, a low-loss and high transmission analogy of electromagnetically induced transparency based on electric toroidal dipolar response is numerically and experimentally demonstrated. It is obtained by the excitation of the low-loss electric toroidal dipolar response, which confines the magnetic field inside a dielectric substrate with toroidal geometry. The metamaterial electromagnetically induced transparency (EIT) structure is composed of the cut wire and asymmetric split-ring resonators. The transmission level is as high as 0.88, and the radiation loss is greatly suppressed, which can be proved by the surface currents distributions, the magnetic field distributions, and the imaginary parts of the effective permeability and permittivity. It offers an effective way to produce low-loss and high transmission metamaterial EIT.
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